title: Letter: international IBD practice guidelines -- authors' reply.
authors.forename: J D
authors.initials: JD
authors.lastname: Feuerstein
authors.forename: D A
authors.initials: DA
authors.lastname: Leffler
authors.forename: A S
authors.initials: AS
authors.lastname: Cheifetz
mesh_terms: D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000175:diagnosis* / Q000628:therapy*; D017410:Practice Guidelines as Topic / Q000592:standards*